そちらへ行いくto go that way / to come to your place
後あとでそちらへ行いきます。
I'll come over to your place later.
そちらにおかけくださいplease have a seat there
どうぞそちらにおかけください。
Please have a seat over there.
そちらはどなたですかwho is this (calling)?, polite way to ask who the listener is
失しつ礼れいですが、そちらはどなたですか。
Excuse me, but who is this speaking?
そちらの都つ合ごうyour convenience/schedule (polite, business use)
そちらのご都つ合ごうのよい日ひを教おしえてください。
Please let us know a day that's convenient for you.
そちらをくださいI'll take that one (pointing to something near the listener)
すみません、そちらをください。
Excuse me, I'll take that one there.

Grammar

こちら・そちら・あちら・どちらPolite directions, places, sides, and referencesN5

Kanji

其that
方direction, person, alternative

Opposites

こちらN5
そちら points toward the listener's side, while こちら points toward the speaker's side.

Don't confuse with

あちらN5
そちら refers to a place or thing near the listener, whereas あちら refers to something away from both speaker and listener, so learners often mix up the two.
どちらN5
そちら is a statement about the listener's side, while どちら is the question form asking which direction, place, or one, and the similar sound leads learners to confuse them.
こちらN5
こちら points to something near the speaker, while そちら points to something near the listener; learners often mix up which side each refers to.

Written forms

そちらUsage56%
Standard polite form; the most common written spelling.
そっちUsage42%
Casual, contracted form used in informal speech.
其方Usage2%

Etymology

Derived from the demonstrative prefix そ- (so-, 'that near the listener') combined with the directional suffix ちら (chira, 'direction'). Part of the systematic ko-so-a-do demonstrative set.

rarely-used kanji form

そちら
Rare kanji form; almost always written in kana.
そっち

ソッチUsage<1%